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Finding the Fourth Proportional to 10,607.68, 15,917.68 and 4,368.32

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Solution

The fourth proportional to 10,607.68, 15,917.68 and 4,368.32 is: 6,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.68 : 15,917.68 = 4,368.32 : x
  2. Step 2: Convert to fraction form
    10,607.68/15,917.68 = 4,368.32/x
  3. Step 3: Cross multiply
    10,607.68x = 15,917.68 × 4,368.32
  4. Step 4: Simplify right side
    10,607.68x = 69,533,440.31
  5. Step 5: Solve for x
    x = 69,533,440.31/10,607.68
  6. Step 6: Final answer
    x = 6,555.01

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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.