Home / 46,985.40-70,480.80-13,710.60

Finding the Fourth Proportional to 46,985.40, 70,480.80 and 13,710.60

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Solution

The fourth proportional to 46,985.40, 70,480.80 and 13,710.60 is: 20,566.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,985.40 : 70,480.80 = 13,710.60 : x
  2. Step 2: Convert to fraction form
    46,985.40/70,480.80 = 13,710.60/x
  3. Step 3: Cross multiply
    46,985.40x = 70,480.80 × 13,710.60
  4. Step 4: Simplify right side
    46,985.40x = 966,334,056.48
  5. Step 5: Solve for x
    x = 966,334,056.48/46,985.40
  6. Step 6: Final answer
    x = 20,566.69

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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.