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Finding the Fourth Proportional to 15,502.84, 21,391.98 and 10,477.99

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Solution

The fourth proportional to 15,502.84, 21,391.98 and 10,477.99 is: 14,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.84 : 21,391.98 = 10,477.99 : x
  2. Step 2: Convert to fraction form
    15,502.84/21,391.98 = 10,477.99/x
  3. Step 3: Cross multiply
    15,502.84x = 21,391.98 × 10,477.99
  4. Step 4: Simplify right side
    15,502.84x = 224,144,952.52
  5. Step 5: Solve for x
    x = 224,144,952.52/15,502.84
  6. Step 6: Final answer
    x = 14,458.32

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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.