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Finding the Fourth Proportional to 11,346,807.20, 17,020,210.80 and 10,417,834.40

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Solution

The fourth proportional to 11,346,807.20, 17,020,210.80 and 10,417,834.40 is: 15,626,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346,807.20 : 17,020,210.80 = 10,417,834.40 : x
  2. Step 2: Convert to fraction form
    11,346,807.20/17,020,210.80 = 10,417,834.40/x
  3. Step 3: Cross multiply
    11,346,807.20x = 17,020,210.80 × 10,417,834.40
  4. Step 4: Simplify right side
    11,346,807.20x = 177,313,737,567,491.53
  5. Step 5: Solve for x
    x = 177,313,737,567,491.53/11,346,807.20
  6. Step 6: Final answer
    x = 15,626,751.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.