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Finding the Fourth Proportional to 10,607.70, 15,911.55 and 10,364.70

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Solution

The fourth proportional to 10,607.70, 15,911.55 and 10,364.70 is: 15,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.70 : 15,911.55 = 10,364.70 : x
  2. Step 2: Convert to fraction form
    10,607.70/15,911.55 = 10,364.70/x
  3. Step 3: Cross multiply
    10,607.70x = 15,911.55 × 10,364.70
  4. Step 4: Simplify right side
    10,607.70x = 164,918,442.29
  5. Step 5: Solve for x
    x = 164,918,442.29/10,607.70
  6. Step 6: Final answer
    x = 15,547.05

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Similar ratio
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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.