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Finding the Fourth Proportional to 29,210.76, 40,312.08 and 17,281.08

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Solution

The fourth proportional to 29,210.76, 40,312.08 and 17,281.08 is: 23,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,210.76 : 40,312.08 = 17,281.08 : x
  2. Step 2: Convert to fraction form
    29,210.76/40,312.08 = 17,281.08/x
  3. Step 3: Cross multiply
    29,210.76x = 40,312.08 × 17,281.08
  4. Step 4: Simplify right side
    29,210.76x = 696,636,279.45
  5. Step 5: Solve for x
    x = 696,636,279.45/29,210.76
  6. Step 6: Final answer
    x = 23,848.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.