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Finding the Fourth Proportional to 15,312.66, 22,950.54 and 7,913.13

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Solution

The fourth proportional to 15,312.66, 22,950.54 and 7,913.13 is: 11,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.66 : 22,950.54 = 7,913.13 : x
  2. Step 2: Convert to fraction form
    15,312.66/22,950.54 = 7,913.13/x
  3. Step 3: Cross multiply
    15,312.66x = 22,950.54 × 7,913.13
  4. Step 4: Simplify right side
    15,312.66x = 181,610,606.59
  5. Step 5: Solve for x
    x = 181,610,606.59/15,312.66
  6. Step 6: Final answer
    x = 11,860.16

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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.