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Finding the Fourth Proportional to 15,925.74, 21,973.95 and 9,637.98

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Solution

The fourth proportional to 15,925.74, 21,973.95 and 9,637.98 is: 13,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925.74 : 21,973.95 = 9,637.98 : x
  2. Step 2: Convert to fraction form
    15,925.74/21,973.95 = 9,637.98/x
  3. Step 3: Cross multiply
    15,925.74x = 21,973.95 × 9,637.98
  4. Step 4: Simplify right side
    15,925.74x = 211,784,490.62
  5. Step 5: Solve for x
    x = 211,784,490.62/15,925.74
  6. Step 6: Final answer
    x = 13,298.25

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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.