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Finding the Fourth Proportional to 24,656.94, 36,988.65 and 12,970.80

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Solution

The fourth proportional to 24,656.94, 36,988.65 and 12,970.80 is: 19,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,656.94 : 36,988.65 = 12,970.80 : x
  2. Step 2: Convert to fraction form
    24,656.94/36,988.65 = 12,970.80/x
  3. Step 3: Cross multiply
    24,656.94x = 36,988.65 × 12,970.80
  4. Step 4: Simplify right side
    24,656.94x = 479,772,381.42
  5. Step 5: Solve for x
    x = 479,772,381.42/24,656.94
  6. Step 6: Final answer
    x = 19,457.90

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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.