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Finding the Fourth Proportional to 14,602.95, 20,152.05 and 7,888.57

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Solution

The fourth proportional to 14,602.95, 20,152.05 and 7,888.57 is: 10,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,602.95 : 20,152.05 = 7,888.57 : x
  2. Step 2: Convert to fraction form
    14,602.95/20,152.05 = 7,888.57/x
  3. Step 3: Cross multiply
    14,602.95x = 20,152.05 × 7,888.57
  4. Step 4: Simplify right side
    14,602.95x = 158,970,857.07
  5. Step 5: Solve for x
    x = 158,970,857.07/14,602.95
  6. Step 6: Final answer
    x = 10,886.22

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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.